Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: NWHOTXXADS1

Remotes:

Switch Switch name Switch type
ASBRTXXARS0  AUSBORNE  3RS 
ATENTXXARS1  ATEN  SR 
FLCRTXXARS1  FLETCHER CARTER  SR 
GAILTXXARS1  GAIL  SR 
LOOPTXXARS0  LOOP  3RS 
NWHOTXXBRS1  NEW HOME  SR 
PNCTTXXARS0  PUNKIN CENTER  3RS 
POSTTXAHRS1  POST  RS 
SLNDTXXARS1  SOUTHLAND  SR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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